Acai Berries: What They Are, What They Contain and How to Use Them

Updated: May 2026

Acai berries have been eaten as a food staple in the Amazon basin for centuries. They arrived in the Western health food market in the mid-2000s with considerable fanfare, and while some of the claims attached to them were overstated, the berries themselves have genuine nutritional character worth understanding clearly.

This post covers what acai berries are, what they contain, what they taste like, and how to use them practically.

What are acai berries?

Acai berries (pronounced ah-sigh-EE) are the fruit of Euterpe oleracea, a tall slender palm native to the floodplains of Central and South America, particularly the Amazon basin of Brazil. They grow in large hanging clusters, each berry around the size of a large blueberry — deep purple in colour with a distinctive earthy, slightly chocolatey flavour.

Around 70% of each berry is made up of its central stone, so the edible pulp is relatively small in volume but dense in nutrients. Acai has been a dietary staple of indigenous Amazonian communities for generations — eaten fresh, pulped, or blended into everyday meals. In parts of northern Brazil, it remains one of the most important food sources in the local diet.

Why is acai only available dried or powdered outside South America?

Fresh acai is highly perishable — it begins to degrade within 24 hours of harvest, which makes export of the fresh fruit impractical. Almost all acai sold in the UK is therefore processed at source, either freeze-dried or spray-dried, immediately after picking.

How it is processed matters considerably. Freeze-drying uses low temperatures to remove moisture, preserving the berry’s nutritional profile effectively. Spray-drying uses heat, which degrades delicate plant compounds. Our organic acai berry powder is freeze-dried at source immediately after harvest for exactly this reason.

What does acai contain?

Acai berries are nutritionally distinctive among fruits. They contain a high concentration of anthocyanins — the plant pigment compounds that give them their deep purple colour and that are also found in blueberries, blackcurrants and red grapes. They also contain healthy fats including oleic acid and omega fatty acids (unusual in a berry), dietary fibre, plant sterols, vitamins A and C, calcium, iron and a small amount of protein.

Their ORAC score — a laboratory measure of antioxidant capacity — is exceptionally high at around 102,700 per 100g, which is among the highest of any whole food measured. As with all ORAC scores, this reflects laboratory conditions rather than directly predicting effects in the human body, but it gives a useful sense of the plant compound density in the berry.

What do acai berries taste like?

The flavour is earthy, slightly tart and low in sweetness — with a distinctive dark chocolate and mixed berry note that makes it quite different from most other berries. It is not sweet in the way that blueberries or strawberries are. In smoothie bowls and blended drinks it pairs well with banana, mango and coconut milk, which balance the earthiness and add natural sweetness.

How to use acai powder

Acai powder works well added to smoothies and smoothie bowls, stirred into porridge or overnight oats, mixed into yoghurt, or blended into homemade energy balls alongside oats, dates and nut butter. Start with half a teaspoon and adjust — the flavour is present but not overpowering, and the deep purple colour will stain surfaces.

For a step-by-step recipe, our acai bowl recipe is a practical starting point. For more on how to pronounce the word correctly and where it comes from, our pronunciation guide covers both.

Powder or capsules?

Both our organic acai powder and capsules use the same freeze-dried acai, made in-house at our Leicestershire facility with no fillers, binders or flowing agents. The powder is more versatile for cooking; the capsules are more convenient for daily use. Both are Soil Association certified organic and plastic-free.